124 lines
5.1 KiB
Diff
124 lines
5.1 KiB
Diff
From d6df1426ae65b3a0d50bdbb1f8a7246386dd6ebf Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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Date: Fri, 7 Feb 2020 11:24:04 +0000
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Subject: [PATCH 07/18] iotests.py: Let wait_migration wait even more
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RH-Author: Kevin Wolf <kwolf@redhat.com>
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Message-id: <20200207112404.25198-7-kwolf@redhat.com>
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Patchwork-id: 93751
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O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 6/6] iotests.py: Let wait_migration wait even more
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Bugzilla: 1781637
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RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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From: Max Reitz <mreitz@redhat.com>
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The "migration completed" event may be sent (on the source, to be
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specific) before the migration is actually completed, so the VM runstate
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will still be "finish-migrate" instead of "postmigrate". So ask the
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users of VM.wait_migration() to specify the final runstate they desire
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and then poll the VM until it has reached that state. (This should be
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over very quickly, so busy polling is fine.)
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Without this patch, I see intermittent failures in the new iotest 280
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under high system load. I have not yet seen such failures with other
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iotests that use VM.wait_migration() and query-status afterwards, but
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maybe they just occur even more rarely, or it is because they also wait
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on the destination VM to be running.
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Signed-off-by: Max Reitz <mreitz@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit 8da7969bd7014f6de037d8ae132b40721944b186)
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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tests/qemu-iotests/234 | 8 ++++----
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tests/qemu-iotests/262 | 4 ++--
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tests/qemu-iotests/280 | 2 +-
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tests/qemu-iotests/iotests.py | 6 +++++-
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4 files changed, 12 insertions(+), 8 deletions(-)
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diff --git a/tests/qemu-iotests/234 b/tests/qemu-iotests/234
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index 34c818c..59a7f94 100755
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--- a/tests/qemu-iotests/234
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+++ b/tests/qemu-iotests/234
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@@ -69,9 +69,9 @@ with iotests.FilePath('img') as img_path, \
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iotests.log(vm_a.qmp('migrate', uri='exec:cat >%s' % (fifo_a)))
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with iotests.Timeout(3, 'Migration does not complete'):
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# Wait for the source first (which includes setup=setup)
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- vm_a.wait_migration()
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+ vm_a.wait_migration('postmigrate')
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# Wait for the destination second (which does not)
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- vm_b.wait_migration()
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+ vm_b.wait_migration('running')
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iotests.log(vm_a.qmp('query-migrate')['return']['status'])
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iotests.log(vm_b.qmp('query-migrate')['return']['status'])
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@@ -98,9 +98,9 @@ with iotests.FilePath('img') as img_path, \
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iotests.log(vm_b.qmp('migrate', uri='exec:cat >%s' % (fifo_b)))
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with iotests.Timeout(3, 'Migration does not complete'):
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# Wait for the source first (which includes setup=setup)
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- vm_b.wait_migration()
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+ vm_b.wait_migration('postmigrate')
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# Wait for the destination second (which does not)
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- vm_a.wait_migration()
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+ vm_a.wait_migration('running')
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iotests.log(vm_a.qmp('query-migrate')['return']['status'])
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iotests.log(vm_b.qmp('query-migrate')['return']['status'])
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diff --git a/tests/qemu-iotests/262 b/tests/qemu-iotests/262
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index 0963daa..bbcb526 100755
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--- a/tests/qemu-iotests/262
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+++ b/tests/qemu-iotests/262
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@@ -71,9 +71,9 @@ with iotests.FilePath('img') as img_path, \
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iotests.log(vm_a.qmp('migrate', uri='exec:cat >%s' % (fifo)))
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with iotests.Timeout(3, 'Migration does not complete'):
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# Wait for the source first (which includes setup=setup)
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- vm_a.wait_migration()
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+ vm_a.wait_migration('postmigrate')
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# Wait for the destination second (which does not)
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- vm_b.wait_migration()
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+ vm_b.wait_migration('running')
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iotests.log(vm_a.qmp('query-migrate')['return']['status'])
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iotests.log(vm_b.qmp('query-migrate')['return']['status'])
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diff --git a/tests/qemu-iotests/280 b/tests/qemu-iotests/280
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index 0b1fa8e..85e9114 100755
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--- a/tests/qemu-iotests/280
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+++ b/tests/qemu-iotests/280
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@@ -45,7 +45,7 @@ with iotests.FilePath('base') as base_path , \
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vm.qmp_log('migrate', uri='exec:cat > /dev/null')
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with iotests.Timeout(3, 'Migration does not complete'):
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- vm.wait_migration()
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+ vm.wait_migration('postmigrate')
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iotests.log('\nVM is now stopped:')
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iotests.log(vm.qmp('query-migrate')['return']['status'])
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diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
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index 5741efb..0c55f7b 100644
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--- a/tests/qemu-iotests/iotests.py
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+++ b/tests/qemu-iotests/iotests.py
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@@ -663,12 +663,16 @@ class VM(qtest.QEMUQtestMachine):
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}
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]))
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- def wait_migration(self):
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+ def wait_migration(self, expect_runstate):
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while True:
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event = self.event_wait('MIGRATION')
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log(event, filters=[filter_qmp_event])
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if event['data']['status'] == 'completed':
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break
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+ # The event may occur in finish-migrate, so wait for the expected
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+ # post-migration runstate
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+ while self.qmp('query-status')['return']['status'] != expect_runstate:
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+ pass
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def node_info(self, node_name):
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nodes = self.qmp('query-named-block-nodes')
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--
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1.8.3.1
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